The Smart Belay Device by Mammut has been specially desgined to meet the needs of the constantly growing group of indoor and sport climbers. It dynamically brakes the climber in an accidental fall and locks even at low levels of force exerted by the user.

In situations where the user has a sudden shock, the Smart Belay device corresponds to the reflex movements of the human body.

Suitable for all current HMS carabiners and simple ropes from 8.9-10.5 mm in diameter.

Today I bought the Mammut Smart Belay reluctantly over the infamous Grigri by Petzl. After a bit of homework and a brief discussion with the Rock/Creek salesman (thanks Josh), I opted for the Smart. It was a big question mark and I couldn't find too much review on the item, especcially in comparison to the Grigri, but the price tag was initiative enough to give it a shot. I was pleasantly surprised with the tension that was removed from the belayer and the overall smoothness of feeding rope and taking slack. It does all that you could want from a belay with half the weight, and one-fourth the price. There were a few snags in lowering a climber that a little intuition and troubleshooting quickly fixed. Overall, don't be afraid of the funky appearance, save some money and give it a try.